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Henry Ford's Model T was originally designed and built to run on ethanol. Today, ethanol (190-proof alcohol) can be produced with domestic stills for about $0.85 per gallon. When blended with gasoline costing $4.00 per gallon, a 20% ethanol and 80% gasoline mixture costs $3.37 per gallon. Assume fuel consumption at 25 mpg and engine performance in general are not adversely affected withthis 20-80 blend (called E20). (1.3)
How much money can be saved for 15,000 miles of driving per year?
How much gasoline per year is being converted if one million people use the E20 fuel?
an ideal otto cycle has a compression ratio of 8. at the beginning of the compression process air is at 95kpa and
With the help of two examples, Explain a DC motor and a magnetic levitation system Explain the use of MATLAB and Simulink for modeling and analysis.
A 4.40-ft^3 rigid tank contains saturated refrigerant-134a at 100 psia. Initially, 26 percent of the volume is occupied by liquid and the rest by vapor. A value at the top of the tank is now opened, and vapor is allowed to escape slowly from the tank..
in a carnot cycle heat is supplied at 350degc and rejected at 27degc. the working fluid is water which while receiving
The gas-turbine cycle of a combined gas-steam power plant has a pressure ratio of 8. Air enters the compressor at 290 K and the turbine at 1400 K. The combustion gases leaving the gas turbine are used to heat the steam at 15 MPa to 450°C in a heat..
two kg of a mixture having an analyis of on a mass basis of 30 nitrogen 40 carbon dioxide 30 oxygen is compressed
the breaking strength x kg of a certain type of plastic block is normally distributed with a mean of 1500 kg and a
Estimate the greatest value of the elastic modulus that can be obtained by long randomly oriented ?bers of E-glass embedded in an epoxy resin if the volume fraction is 40%. Assume that the modulus of the epoxy is 5 GPa.
a geothermal power plant utilizes steam produced by natural means underground. steam wells are drilled to tap this
The impeller of a centrifugal pump has inner and outer diameters of 14 and 37cm, respectively, and a flow rate of 0.18m3/s at a rotational speed of 1200rpm. The blade width of the impeller is 8.6cm at the inlet and 3.5cm at the outlet.
a cylinder contains 2 kg of steam at 200 kpa and 200 c. the steam is compressed at constant pressure until its
in moles of an ideal gas a ad 1-n moles of an ideal gas b each at 1 atm pressure are mixed at total constant pressure.
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